1. INRA; UMR 1347 Agroecologie; Dijon; France
2. Department of Environmental Science and Technology; School of Applied Sciences; National Soil Resources Institute; Cranfield University; Cranfield; UK
3. INERIS; Parc Technologique ALATA; Verneuil en Halatte; France
4. Department of Microbiology; Swedish University of Agricultural Sciences; Uppsala; Sweden